Messages in this thread Patch in this message | | | Date | Fri, 18 Feb 2022 17:49:15 +0100 | From | Peter Zijlstra <> | Subject | [PATCH 13/29] x86/ibt,ftrace: Add ENDBR to samples/ftrace |
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Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> --- samples/ftrace/ftrace-direct-modify.c | 5 +++++ samples/ftrace/ftrace-direct-multi-modify.c | 10 +++++++--- samples/ftrace/ftrace-direct-multi.c | 5 ++++- samples/ftrace/ftrace-direct-too.c | 3 +++ samples/ftrace/ftrace-direct.c | 3 +++ 5 files changed, 22 insertions(+), 4 deletions(-)
--- a/samples/ftrace/ftrace-direct-modify.c +++ b/samples/ftrace/ftrace-direct-modify.c @@ -24,20 +24,25 @@ static unsigned long my_ip = (unsigned l #ifdef CONFIG_X86_64 +#include <asm/ibt.h> + asm ( " .pushsection .text, \"ax\", @progbits\n" " .type my_tramp1, @function\n" " .globl my_tramp1\n" " my_tramp1:" + ASM_ENDBR " pushq %rbp\n" " movq %rsp, %rbp\n" " call my_direct_func1\n" " leave\n" " .size my_tramp1, .-my_tramp1\n" ASM_RET + " .type my_tramp2, @function\n" " .globl my_tramp2\n" " my_tramp2:" + ASM_ENDBR " pushq %rbp\n" " movq %rsp, %rbp\n" " call my_direct_func2\n" --- a/samples/ftrace/ftrace-direct-multi-modify.c +++ b/samples/ftrace/ftrace-direct-multi-modify.c @@ -22,11 +22,14 @@ extern void my_tramp2(void *); #ifdef CONFIG_X86_64 +#include <asm/ibt.h> + asm ( " .pushsection .text, \"ax\", @progbits\n" " .type my_tramp1, @function\n" " .globl my_tramp1\n" " my_tramp1:" + ASM_ENDBR " pushq %rbp\n" " movq %rsp, %rbp\n" " pushq %rdi\n" @@ -34,12 +37,13 @@ asm ( " call my_direct_func1\n" " popq %rdi\n" " leave\n" -" ret\n" + ASM_RET " .size my_tramp1, .-my_tramp1\n" + " .type my_tramp2, @function\n" -"\n" " .globl my_tramp2\n" " my_tramp2:" + ASM_ENDBR " pushq %rbp\n" " movq %rsp, %rbp\n" " pushq %rdi\n" @@ -47,7 +51,7 @@ asm ( " call my_direct_func2\n" " popq %rdi\n" " leave\n" -" ret\n" + ASM_RET " .size my_tramp2, .-my_tramp2\n" " .popsection\n" ); --- a/samples/ftrace/ftrace-direct-multi.c +++ b/samples/ftrace/ftrace-direct-multi.c @@ -17,11 +17,14 @@ extern void my_tramp(void *); #ifdef CONFIG_X86_64 +#include <asm/ibt.h> + asm ( " .pushsection .text, \"ax\", @progbits\n" " .type my_tramp, @function\n" " .globl my_tramp\n" " my_tramp:" + ASM_ENDBR " pushq %rbp\n" " movq %rsp, %rbp\n" " pushq %rdi\n" @@ -29,7 +32,7 @@ asm ( " call my_direct_func\n" " popq %rdi\n" " leave\n" -" ret\n" + ASM_RET " .size my_tramp, .-my_tramp\n" " .popsection\n" ); --- a/samples/ftrace/ftrace-direct-too.c +++ b/samples/ftrace/ftrace-direct-too.c @@ -19,11 +19,14 @@ extern void my_tramp(void *); #ifdef CONFIG_X86_64 +#include <asm/ibt.h> + asm ( " .pushsection .text, \"ax\", @progbits\n" " .type my_tramp, @function\n" " .globl my_tramp\n" " my_tramp:" + ASM_ENDBR " pushq %rbp\n" " movq %rsp, %rbp\n" " pushq %rdi\n" --- a/samples/ftrace/ftrace-direct.c +++ b/samples/ftrace/ftrace-direct.c @@ -16,11 +16,14 @@ extern void my_tramp(void *); #ifdef CONFIG_X86_64 +#include <asm/ibt.h> + asm ( " .pushsection .text, \"ax\", @progbits\n" " .type my_tramp, @function\n" " .globl my_tramp\n" " my_tramp:" + ASM_ENDBR " pushq %rbp\n" " movq %rsp, %rbp\n" " pushq %rdi\n"
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